Space Otter Charlie

There are 16 Otter Facts to find throughout the game. You must find all 16 for this to unlock. If you go into Data Logs in the menu and go down to Otter Facts, you can use Right Stick to scroll the otter facts window. Any you are missing will say "missing entry" and they are in order that you encounter them in the game. For example I had only one "missing entry" when I finished the game. There were two entries below it soI knew it was #14, so I started replaying levels working backward from the one right before the final boss. I found this one in a secret area (fake walls you can fly into) I had missed in Pallas Asteroid Mine.

I do believe there is only 1 data log for this in each main mission.

I dont think the Space Rats, Haunted, A New Lifeform, and MEGA data logs are necessary for this.